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tanの加法定理その２

Author:Bunryu Kamimura

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接点の作る円は内接円
standingwave-plus
standingwave-reflection
等積変形2
コイン投げと樹形図

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Ex_69
一次関数（2動点と三角形の面積）
対頂角
立方体の断面図(3-6) のコピー
行列のイメージと固有ベクトル

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Fractal Geometry
Statistical Characteristics
Reflection
Statistics
Triangles

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